ribosomal synthesis cyclic peptides cyclic - rhode-skincare-peptide-serum Ribosomal synthesis and de novo discovery of bioactive foldamer peptides containing cyclic β-amino acids Revolutionizing Peptide Synthesis: The Dawn of Ribosomal Synthesis of Cyclic Peptides

rice-peptides-for-skin The field of molecular biology and chemistry is abuzz with a groundbreaking advancement: the ribosomal synthesis of cyclic peptides.2025年7月8日—A research team has become the first in the world to successfully expand the range of ring-shaped backbones in proteins using ribosomes. This innovative approach marks a significant departure from traditional methods, offering unparalleled control and expanded possibilities in creating these complex and valuable molecules. For decades, ribosomes have been the workhorses of peptide synthesis, responsible for polymerizing L-α-amino acids into linear polypeptides through the intricate process of peptide bond formation via aminolysis2023年1月13日—Here we developed a streamlined chemoenzymatic approach tosynthesize cyclic peptidesby exploiting non-ribosomal peptide (NRP) cyclases. Linear .... However, recent breakthroughs have demonstrated that ribosomes can now synthesize cyclic peptides, moving beyond their historical role in producing only linear chains and opening doors to novel therapeutic and material applications.

Understanding the Mechanism: From Linear Chains to Cyclic Structures

The ribosome, a cellular machine essential for ribosomal synthesis, plays a crucial role in translating genetic information into proteins. Traditionally, this process yields linear peptides. The ability to now achieve ribosomal synthesis of cyclic peptides signifies a major leap. This expanded capability allows for the creation of core ring structures, which are inherently more stable and possess unique properties compared to their linear counterparts. Research has shown that ribosomes can facilitate the orchestrating of the formation of side chain-to-tail cyclic peptides from ribosomally derived polypeptide chains. This is a critical development, as cyclic peptides often exhibit enhanced structural stability and target specificity, making them highly attractive for therapeutic development.Ribosomal synthesis of backbone macrocyclic peptides

Expanding the Repertoire: Non-Standard and Foldamer Peptides

The implications of ribosomal synthesis of cyclic peptides extend to the incorporation of non-standard amino acids and the creation of foldamer peptidesRibosomal synthesis and de novo discovery of bioactive .... Scientists are now able to achieve the ribosomal synthesis of foldamer peptides that contain multiple, up to ten, consecutive cβAAs (cyclic beta-amino acids) through genetic code reprogramming. This allows for the construction of novel molecular architectures with tailored properties. The ribosomal synthesis and de novo discovery of bioactive foldamer peptides containing cyclic β-amino acids is a testament to this expanding frontier.作者：Y Yamagishi·2009·被引用次数：91—We demonstrate a new method for the cyclization ofpeptidesthat involves the oxidative coupling of 5-hydroxyindole and benzylamine. These cyclic peptides offer a vast and previously inaccessible sequence space for exploration, potentially leading to new classes of enzymes, medicines, and advanced materials. The ribosomal synthesis of foldamer peptides opens up exciting avenues for designing molecules with specific functions and enhanced biological activities.作者：T Katoh·2020·被引用次数：133—Here we report the ribosomal synthesis of foldamer peptides that contain multiple, up to ten, consecutive cβAAs via genetic code reprogramming.

Advantages and Applications of Cyclic Peptides

The inherent structure of cyclic peptides confers significant advantages作者：E Nakajima·2009·被引用次数：43—The C-terminal amide modification of linear andcyclic peptidesshould enhance their physiological stabilities, and open up the possibility of .... Their closed-ring conformation often leads to increased resistance to enzymatic degradation, enhancing their physiological stabilities. This makes them more robust in biological systems and prolongs their therapeutic half-life.Ribosomal Synthesis of Macrocyclic Peptides in Vitro and ... Furthermore, the constrained nature of cyclic peptides can lead to a higher binding affinity and specificity for their target molecules. Indeed, cyclic peptides exhibit advantages in binding protein targets with high affinity, proving crucial in applications like inhibiting protein-protein interactions.

The ability to synthesize cyclic peptides through ribosomal synthesis is revolutionizing drug developmentRibosomal synthesis of cyclic peptides with a fluorogenic .... Cyclic peptides offer a unique blend of the structural integrity and target-engaging capabilities of larger biologics with the synthetic tractability of smaller molecules. This has led to significant interest in their development as pharmaceuticals. Beyond medicine, the unique structural and functional properties of cyclic peptides suggest potential applications in areas such as biomaterials and chemical biology research.2025年7月9日—Utilizing a cell-free protein synthesis system, they demonstrated thatribosomes could now generate not only linear chains but also core ring...

Future Directions and Ongoing Research

The field is rapidly evolving, with ongoing research focused on further expanding the capabilities of ribosomal synthesis.作者：X Ji·2024·被引用次数：357—For peptides specifically, nature has evolved two different methods for polymerizing the amino acid monomer:ribosomaland non-ribosomal ... Efforts are underway to develop more efficient methods for creating diverse libraries of cyclic peptides. This includes exploring techniques like isothiocyanate-mediated cyclization of phage-displayed peptides and leveraging advancements in cell-free protein synthesis systems. The recent demonstration that ribosomes could now generate not only linear chains but also core ring structures signifies a pivotal momentRibosomes can now synthesize cyclic peptides, expanding .... While non-ribosomal peptide (NRP) cyclases have been utilized in chemoenzymatic synthesis of cyclic peptides, the direct ribosomal synthesis of cyclic peptides offers a more direct and potentially scalable pathway. The ongoing exploration of ribosomal synthesis of backbone-cyclic peptides and ribosomal synthesis of macrocyclic peptides highlights the continued drive to unlock the full potential of this transformative technology.